20764356712 has 32 divisors (see below), whose sum is σ = 42485627520. Its totient is φ = 9435437440.

The previous prime is 20764356709. The next prime is 20764356749. The reversal of 20764356712 is 21765346702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265188 + ... + 334444.

It is an arithmetic number, because the mean of its divisors is an integer number (1327675860).

Almost surely, 2^20764356712 is an apocalyptic number.

20764356712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20764356712 is an abundant number, since it is smaller than the sum of its proper divisors (21721270808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20764356712 is a wasteful number, since it uses less digits than its factorization.

20764356712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72681 (or 72677 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 20764356712 in words is "twenty billion, seven hundred sixty-four million, three hundred fifty-six thousand, seven hundred twelve".